Description: Virtual deduction proof of onfrALTlem133506.
The following User's Proof is a Virtual Deduction proof completed
automatically by the tools program completeusersproof.cmd, which invokes
Mel L. O'Cat's mmj2 and Norm Megill's Metamath Proof Assistant.
onfrALTlem133506 is onfrALTlem1VD33876 without virtual deductions and was
automatically derived from onfrALTlem1VD33876.